Skip to product information
1 of 3

Yorkshire.Fossils

Hildoceras Bifrons ammonite fossil - Whitby, North Yorkshire Jurassic Coast

Hildoceras Bifrons ammonite fossil - Whitby, North Yorkshire Jurassic Coast

Regular price $41.00 USD
Regular price Sale price $41.00 USD
Sale Sold out
Shipping calculated at checkout.

Ammonite shell fossil for sale found near Whitby, North Yorkshire on the Jurassic Coast

Squared top with a strong keel bordered either side by a groove are distinctive features.  Spiral groove (indentation on the side of the whorls) and sloping umbilical wall (bottom edge of the whorl).  Curved sickle-shaped ribs, which are strongest above the spiral groove.  Can reach large size (over 6 inches), although 4 inches or less more common. A more slender and fine ribbed form/species Hildoceras semipolitum (Buckman, 1902) can be found at Ravencar.

Actual ammonite size: 7.8cm 

Age (lithology): Upper Lias; Toarcian; Bifrons zone; Fibulatum and Crassum subzones.

 

Distribution: Port Mulgrave, Kettleness, Sandsend, Saltwick, Runswick, Hawsker, Ravenscar.

 

Occurrence:  Common

 

View full details

Authenticity

All of our available specimens are collected and sourced by ourselves or local trusted collectors and we can guarantee the fossil you will receive is 100% genuine. You will be made aware of fossils with any restoration in the description of the fossil.